Lock.



A. KIRSCH.

LOCK.

APPLlcATloN man Nov.10, 1917.

Patented July 16, 1918.

2 SHEETS-SHEET I INVENTH A. KIRSCH.

LOCK.

APPLICATION man Nov. lo, 1917.

1 ,27 2,967. Patented July 16, 1918.

2 SHEETS-SHEET 2. EQM. F2,

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ANTHONY KIRSGH, OF BROOKLYN, NEW YORK, ASSIGNOB TOWILSON BOHANNEN, INC., OF BROOKLYN, NEW YORK, A CORPORATION 0F NEW YORK.

` LOCK.

Specification of Letters Patent.

rammed July is, isis.

Application led November 10, 1.917. Serial No. 201,323.

To all whom t may concern:

Be it known that I, ANTHONY Kinston, a

citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Iml proved "Lock, of which the following is a v inder lock and the latch lock.`

In order to accomplish the desired result use is made of a key-controlled cylinder section having 4threaded lugs, a .latch bolt section having a casing provided with two sets of apertures either of which-is adapted to register with the said threaded lu s according to which side of the door ook is to be used, and connecting'screws extending on the line through the registering set of apertures and screwing into the said threaded lugs. AUse is also made of a rollback having a. hub, arms mounted to swing on the said hub, and means limiting the swinging movement of the arms.

A practical embodiment of the invention is represented inthe accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is an inverted sectional plan view of the vlug as'applied, the section being on the line 1-1 of Fig. 2;

y Fig. 2 is a cross section of the same on the line 2 2 of Fig. 4;

Fig. 3 is aface view of the latch lock on the inside of the door;

Fig. 4 is a rear. sectional view of the same latch;

Fig. 5 is asimilar view of the same with the latch bolt 1n retracted position;

Fig. 6 is a perspective view of the roll-- back for the latch bolt and controlled by al knob on the inside of the lock, the several parts being shown in disassembled position; and

Fig. 7 is a face view of a portion of the back'plate.

4-4 of Fig. 2 -and showing the" The lock in its general construction consists of a key-controlled cylinder section 10, a latch bolt section 11 having a latch bolt l2 adapted to engage a keeper 13 attached to the door jamb 14 adjacenhthe door 15, of which the key-controlled cylinder section 10 is held on the outer face and the latch bolt lsection 11 is fastened to the inner face there- The casing 20 of the cylinof by screws'lG.

is provided with the usual der section 10 key-controlled plug 21 and with an integral v face plate 22 engaging a ring 23 resting against the outer face of the door l5. The casing 20 extends into an aperture 24 formed in the door 15, and the casing is provided at opposite sides-with integral lugs 30, 31 in which screw the screws v32., 33 extending through either set of apertures34,'35i or 36, 37 formed in the back plate 38 ofthecasing 39 of the latch bolt section 11. -The screws and 33 also pass through a corresponding registering set of apertures 40, 41 or 42, 43 formed in the integral front plate 44 of the casing 39,-and the heads 45 and 46 of the screws 32, are countersunk in apertures 47, 48 formed in a disk 49'arranged on the front plate 44 of the casing. The disk 49 is mounted to turn on a hub 50 mounted to turn in a bearing 51 formed integrally on the front plate 44, and the hub 50 .is provided with knob 52 under the control of the operator for retracting the latch y.bolt 12 Whenever it is inafter more fully'explained. The hub 50 forms parts of the rollback having two arms 53, 54 extending from rings 55, 56 mounted to turn on the hub 50. The rings 55, 56 are provided with inwardly extending lugs 5 7, 58 engaging-slots 59, 60 formed diametrically opposite each other in the hub 5() thus limiting the swinging motion ofthe arms 53 and 54 on the hub 50.k A Washer 61: is riveted or otherwise fastened on the hub 50 adj aoent the lring `56 to hold thefseveral parts in position. The arms 53 and 54 are adapted to engage flanges 65" and 66- on a fork 67 secured to or forming part of the; latch bolt 12, which latter is pressed ort/fin the usual monner by a spring 68 t0 normally hold thev the arms53, 5 4 are out of engagement with desired to do' so and as herethe screws 32, 33 whether the -latter engage one set or1 the other set of said apertures.

Thus when the several parts are in the posi- .tion shown in-Fig. 4and theknob 12 isturned Y in one direction then the arm 53 acts on the flange 65 and retracts the-latch bolt 12, and

when the knob 52vis turned in the opposite direction then the arm 54 acts on the ilange 66 and retracts the latch bolt 12. The ,casing 39 is provided with integral'stop lugs 70,

7l to limit the movement of the voke 67 of the cylinder section 10 to retract theI bolt 12 without turning thev key .inv the plug 21 thesame as the operator turns the knob 52, as previously explained. It is und@ stood that the hub 84' is provided with slots 59, 60 thesame as the hub 50, and the rings 82, 83 are provided with lugs 57, 58 engaging the said slots A59 `and 60 to limit the swinging movement'of the arms 80, 81 Von the hub 84. f

It is understood .that'in attaching the lock to the' door 15, `the plug 21 is in correct position when downward, as indicated .in Fig. 2, and hence when the lock is used on a right hand door then the screws 32, 33 engage. the sets of apertures34, 35, 40, 41 and the apertures 47, 48 in the disk 49.

When the 'lockis applied to a left hand door then the disk 49 is given a half turn to lmove the apertures 47, 48 in register with the apertures 42, 43, andthe bolts. 32, 33 are now engaged with the said apertures 47, 48, 42, 43 and 36, 37 with the threaded ends of v the screws screwing inthe lugs 30, 31.

From the foregoing it will be seen that by the arrangement described the lock can be correctly attached to either a right or left hand doorand in either case the plug` 21 is in correctdownward position.

It/is lunderstood that when the screws 32, 33 ar screwedup the cylinder section 10 is firmly drawn in position on the outer face of the door 15 thus holding the cylinder ysection in place without any screws appearling-Ion the outside of the door.

aving thus described `my invention, I claim as new andr desire to secure yby Letters Patent 1. A door lock, comprising a key-controlled4 cylinder sectidn having threaded lugs, a latch boltsection having a casing provided with a back plate and a front plate, the said back and front plates having sets of registering apertures either of which is adapted to register with the said threaded lugs, and connecting screws extending through a set ofregistering apertures in the said back and front plates and screwing into the said threaded lugs.

2. A door lock, comprisin a key-controlled cylinder section having threaded lugs, a latch bolt section having a casing provided with two sets of apertures either of which is adapted t0 register with the said threaded lugs, ba bolt slidable in the said casing, two rollbacks each having a hub and arms having limited swinging movement on- 3In a door lock, a rollback having-af hub provided with a diainetrical slot, arms having 'rings mounted to turn on the said hub, the arms extending in opposite directions, the ringsl having lugs extending into the ends of the said slot, the lugs being narrower than the slot, the arms in one position being diametrically opposite each other and in another position extending at an angle one relative to the other.

4. A door lock, comprising a key controlled.y cylinder section havlng threaded lugs, a latch bolt section having a casing provided with two sets of apertures either of which is adapted to register with the said threaded lugs, a bolt slidable in the said casing, two rollbacks each having a hub and arms having limited swinging movement on the hubs, the hub of one rollback being controlled by the cylinder section and the'hub of the other rollback having a manually controlled knob, a .disk mounted to turn on the hub having the knob, the

disk having apertures adaptedI to register 'witheither Set o'f casing apertures on correspondingly turning the disk, and connecting screws extending through the said disk apertures, and the casing apertures in register with thev disk apertures at the time, the screws screwing in the said threaded lugs and being out of the paths of the said v arms.

ANTHONY Kms-CH. 

